Casement-adjuster.



W. F. OHOURKE.

CASEIVIENT ADJUSTER.

APPLICATION FILED Nov. I2, I9I5.

Patented Sept. 12, 1916.

III IIII III! Immun- I ttl WLLIM F. OROURKE, 0F CHIICAG'O, IELLINOILS.

i Specication ot Letters Patent.

patented sept. te, mit.

Application led November 12, 1915. Serial 11o. 61,011.

To all whom it mag/concern:

Be it known that 1, l/VILMAM F'. ORotmnn, a citizen of the United States, and a resident of Chicago, county of JCook, and State of lllinois, have invented certain new and useful improvements in Casement-Adjusters, of which the following is declared tobe a full, clear, and exact description.

'ilhis invention relates to easement adjusters, and its principal objects are to in# crease the efficiency of easement adjusters; to eliminate the rattling of casements; to make a positive lock for the easement at any point' of adjustment, and to simplify and otherwise improve upon the construction of devices of thisclass.

With these and other objects in view this invention consists in the several novel features hereinafter fully described and claimed.

'llhe invention is clearly illustrated in the accompanying drawing, in which-:-

Figure 1, is a view, partly yin plan and partly in horizontal section, showing a simple embodiment of the resent invention; Fig. 2, is a front view o the parts seen in Fig. 1.; Fig. 3, is a detail, vertical section taken on line 3-3 Fig. 1; Fig. t, is a detail section taken on line 4--4 Fig. 2, and Fig. 5, is a detail section taken on line 5-.5 Fig.`1.

Referring to said drawing, the reference numeral 10, designates the frame, and 11, the easement window, hinged to said frame by hinges, one of which is seen at 12. For operating said easement 11, 1 employ an adjuster of .novel construction, which will now be described.. Secured in or on top of the window stool 13, is the base 14, of the adjuster, which is shown as secured to said stool 13, by screws 15. Conveniently said base may take an octagonal form having vertical sides 16, 17. A. top piece or cover 13, is secured to said base by screws 19, 19; threaded in ybosses 20, 20, formed on the base 111. Journaled in the vertical sides 16, 17, and extending therebetween is a worm screw, 21, which has a square end 22, projecting beyond the base and beyond the casement frame, to which squared end may be applied a crank 23, having a hub formed with a square socket for the reception of the squared end of the worm screw. Traveling upon said worm screw 21, is a nut 21, which is non rotative with respect to the worm screw, and has an upstanding pin 25, which travels in a slot 26, formed in an arm 27,

of a easement operating lever 28. Freferably a roller or sleeve 29, surrounds the pin 25, and bears against the edges of said slot. Said easement;1 operating lever 28, is fulcruined upon one of the screws 19, which fastens the cover tothe base and the lever rests upon the boss in which said screw is threaded. The screws 19, 19a, are disposed at the sides of said worm screw 21, and approxlmately midway between its ends to provlde for right and left hand swinging casements.l The lever 28, has a long arm 30, which extends lengthwise of the easement and its varm 27, is -angularly disposed with respect thereto as shown in Fig. ,1, so that its slotted end mayv travel the length of the Worm screw.

The extreme end Aof the long arm 30, of the operating lever 28, is pivotally connected with a slide block 31, which is slidably mounted in a slotted tube 32, secured at its ends in brackets 33, fastened to the easement 11. Conveniently the slide block has outstanding ears 34, between which the kend of the operating lever is pivotally secured, and it has also a cylindrical head portion 35, sliding in the hollow of the slotted tube 32.

1n operation the crank the squared end of the worm shaft 21, and turned in the proper direction, depending on whether the casement is to be opened or closed. 1n opening the easement, the rotation of the Worm screw moves the nut forward., and the pin thereof slides forward in the slot of the operating lever arm 27 and swings the long arm of said and therewith the easement; the slide block 31, traveling or sliding back in the slotted tube 32. 1n closing the window the crank is turned in the reverse direction. 1t is to be noted that when the short arm 27, of the operating lever approaches the end of theV closing movement of the lever, the slot in said arm extends at an angle to the worm screw; conse uently a powerful action is had upon said arm by the worm screw and nut, since the upstanding pin on the nut, in

traveling in said angularly disposed slot, has a sort of wedging action as well as a locking action, thereby positively and securely holding the easement in osition fm from any danger of rattling. y the use of the two upstanding bosses or lugs 20, 20m, one on each side of the worm screw, the ad- 'uster is capable of use for-'right and lefty and swinging easements, by simply plaev 23, is applied to I lever backward ing the operating vlever on the proper lug or boss.

More or less variation of the exact details of construction shown and'described, is posy sible without departing from the spirit of this invention;.I desire, therefore, not to limit myself to the exact form of the inventionshown and described, but intend in the following claims to point out all of the inventionV disclosed herein.

I claim as new and desire to secure by Letters Patent 1. A` easement adjuster,V comprising a base, a worm screw journaled therein, a nut traveling on said worm screw, a easement operating lever, having a long arm slidably connected with a easement, and a short arm angularly disposed with respect to said long arm and in sliding engagement with said nut.

2. A` easement adjuster, comprising a base, a worm screw journaled therein, a' nu't traveling on said worm screw, a easement operating lever fulcrumed on said base and having a long arm slidably connected with said easement anda short arm angularly disposed with respect to said long arm, said nut having a pin projecting therefrom, traveling in a slot formedA in the short arm of said lever.

3. A easement adjuster, comprising a base, a worm screw journaled therein, a nut traveling on said bworm screw, and having a lever actuating pin projecting therefrom, a pair of bosses, one projecting up from the base on either side of the worm screw and approximately midway between its ends, a easement operating lever arranged to be fulcrumed oneither boss, and having a long arm slidably connected with a easement and a short arm angularly disposed with respect thereto, said short arm having a slot therein for the-reception of the lpin on the nut.

LA easement adjuster, comprising a base, a'worm screw therein, a casement operating lever fulcrumed on said base and operatively connected with 'said worm screw, a slotted tube secured to a Casement and a slide block pivotally connected to said. lever and sliding in said slotted tube.

5. A easement adjuster comprising a base, a worm screwrotatably mounted therein, a easement operating lever fulcrumed on said base, and having a long arm extending lengthwise of the easement and slidably con' nected therewith at its end, and having a short arm angularly disposed with respect to thelong arm, a non-rotative nut traveling on said worm screw, and having a pin and slot connection with the short arm of said lever.

WILLIAM F. OROURKE. 

